Changes in directory llvm/lib/Transforms/Scalar:
CondPropagate.cpp updated: 1.7 -> 1.8
---
Log message:
There can be more than one PHINode at the start of the block.
---
Diffs of the changes: (+4 -5)
CondPropagate.cpp | 9 ++++-----
1 files changed, 4 insertions(+), 5 deletions(-)
Index: llvm/lib/Transforms/Scalar/CondPropagate.cpp
diff -u llvm/lib/Transforms/Scalar/CondPropagate.cpp:1.7
llvm/lib/Transforms/Scalar/CondPropagate.cpp:1.8
--- llvm/lib/Transforms/Scalar/CondPropagate.cpp:1.7 Wed Nov 1 16:26:43 2006
+++ llvm/lib/Transforms/Scalar/CondPropagate.cpp Wed Nov 1 17:04:45 2006
@@ -196,11 +196,10 @@
// Get the old block we are threading through.
BasicBlock *OldSucc = FromBr->getSuccessor(0);
- // OldSucc had multiple successors. If ToBB has multiple predecessors, the
- // edge between them would be critical, which we already took care of.
- // If ToBB has single operand PHI node than take care of it here.
- if (isa<PHINode>(ToBB->begin())) {
- PHINode *PN = cast<PHINode>(ToBB->begin());
+ // OldSucc had multiple successors. If ToBB has multiple predecessors, then
+ // the edge between them would be critical, which we already took care of.
+ // If ToBB has single operand PHI node then take care of it here.
+ while (PHINode *PN = dyn_cast<PHINode>(ToBB->begin())) {
assert(PN->getNumIncomingValues() == 1 && "Critical Edge Found!");
PN->replaceAllUsesWith(PN->getIncomingValue(0));
PN->eraseFromParent();
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